Home / 351,618.40-527,427.60-218,648.80

Finding the Fourth Proportional to 351,618.40, 527,427.60 and 218,648.80

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Solution

The fourth proportional to 351,618.40, 527,427.60 and 218,648.80 is: 327,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,618.40 : 527,427.60 = 218,648.80 : x
  2. Step 2: Convert to fraction form
    351,618.40/527,427.60 = 218,648.80/x
  3. Step 3: Cross multiply
    351,618.40x = 527,427.60 × 218,648.80
  4. Step 4: Simplify right side
    351,618.40x = 115,321,411,826.88
  5. Step 5: Solve for x
    x = 115,321,411,826.88/351,618.40
  6. Step 6: Final answer
    x = 327,973.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.